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ESTRO IMRT course 2015
IMRT optimization: algorithms&cost functions
Brussels October 5th, 2015
-35-
MLC delivery deviates from the ideal profiles
optimal fluence profile
sequencing: translation into
(coarser, but deliverable)
segments
step and shoot
courtesy M. Alber
⇒
(1) Quality loss due to
discretization
sliding-window dynamic
improvement
⇒
(2) Hi-quality dose calculation of
segment doses changes dose distribution!
(usually: to the worse)